Never have had a problem with tubes cracking in any gauge. A lot of discussion has been brought up in the past Using International & green dot powders in 20 gauge tube guns... too much pressure... I've always used Universal powder for my 20 gauge needs. as far as 28, I've never had any problems using Universal, Longshot, Unique.. best

If you don't reload or just want the added weight the tubes will provide, its a nice addition. I had them in a Browning 525 and liked the feel of the tubes. If you do reload the 3/4 ounce 20 gauge is great and works just as well as a dedicated 28 gauge. I did not have any problem with the tubes when I owned the gun, sold it to a friend and its still going strong. I did ask Briley about it once and their response is the same as what you have already been told. Keep the pressure to the level of a factory shell and you will be fine.

The only time I have heard of 20ga. tube splitting was when people use Green Dot. I've always used 540 in 28ga. and still have a bunch but when it runs out I believe HS-6 is the same thing. It will make a 28ga. break a target like a real gun. Larry

While Briley did have some issues with cracking in the chambers with the 20 ga. tubes at the squared corner where it was inlet for the built in ejector into the tubes, Briley fixed all tubes when they were returned to them for nothing. Even if you did not buy the tubes from them. As long as they made those tubes for that gun and barrel. So go right ahead and have Briley fit some tubes to your 20 ga gun (they are covered by Briley) and have some real fun shooting that 28 ga. and pull some hair out shooting the 410's as well. LOL As said above there is just something magical about the 28. It truely patterns like perfection. I do suggest that you spend the extra few dollars and get the Ultimate Ultra Light tubes from Briley. These tubes are the lightest tubes they make and also have the strait rifleing down the tubes as well. I have all three with this rifleing and they pattern much better than a smooth bore barrel for whatever reason. I believe it keeps the wad from spinning down the barrel and makes for a better pattern. You will also need to have them do a trigger job on your gun for the 410's second shot to reset the trigger. I also suggest you get a barrel weight so that when you shoot your 20 ga. without the tubes in your gun, it is the same weight and feel when you use it with the tubes in. I had my 525 gun done so go ahead. Also While Briley had my gun open to fix the trigger I had them do a annual on the gun. They did it for a reduced price since the gun was already apart for the trigger fix. Talk to Gary Singer when you give them a call. Good Luck and Break-em all.Jeff